diff --git a/ccxt/async_support/mt5.py b/ccxt/async_support/mt5.py
index 4a945c2..0a40b0f 100644
--- a/ccxt/async_support/mt5.py
+++ b/ccxt/async_support/mt5.py
@@ -714,14 +714,16 @@ class mt5(Exchange, ImplicitAPI):
         """异步获取已平仓订单 - 修复版本"""
         if not hasattr(self, 'token') or not self.token:
             await self.get_token()
-        yesterday = datetime.now() - timedelta(days=3)
-        from_day = yesterday.strftime('%Y-%m-%d') + 'T00:00:00'
-        tomorrow = datetime.now() + timedelta(days=1)
-        to_day = tomorrow.strftime('%Y-%m-%d') + 'T00:00:00'
+        
+        if params.get('from') is None or params.get('to') is None:
+            yesterday = datetime.now() - timedelta(days=3)
+            params['from'] = yesterday.strftime('%Y-%m-%d') + 'T00:00:00'
+            
+            tomorrow = datetime.now() + timedelta(days=1)
+            params['to'] = tomorrow.strftime('%Y-%m-%d') + 'T00:00:00'
+        
         request = {
             'id': self.token,
-            'from': from_day,
-            'to': to_day,
             'sort': 'OpenTime',
             'ascending': 'true',
         }
diff --git a/ccxt/mt5.py b/ccxt/mt5.py
index 35f1bbd..19cb036 100644
--- a/ccxt/mt5.py
+++ b/ccxt/mt5.py
@@ -731,14 +731,15 @@ class mt5(Exchange, ImplicitAPI):
     def fetch_closed_orders(self, symbol=None, since=None, limit=None, params={}):
         """获取已平仓订单"""
         self.load_token()
-        yesterday = datetime.now() - timedelta(days=3)
-        from_day = yesterday.strftime('%Y-%m-%d') + 'T00:00:00'
-        tomorrow = datetime.now() + timedelta(days=1)
-        to_day = tomorrow.strftime('%Y-%m-%d') + 'T00:00:00'
+        if params.get('from') is None or params.get('to') is None:
+            yesterday = datetime.now() - timedelta(days=3)
+            params['from'] = yesterday.strftime('%Y-%m-%d') + 'T00:00:00'
+            
+            tomorrow = datetime.now() + timedelta(days=1)
+            params['to'] = tomorrow.strftime('%Y-%m-%d') + 'T00:00:00'
+        
         request = {
             'id': self.token,
-            'from': from_day,
-            'to': to_day,
             'sort': 'OpenTime',
             'ascending': 'true',
         }
@@ -749,12 +750,12 @@ class mt5(Exchange, ImplicitAPI):
         if symbol is not None:
             market = self.market(symbol)
             filtered_orders = []
-            for order in response:
+            for order in data:
                 if isinstance(order, dict) and order.get('symbol') == market['id']:
                     filtered_orders.append(order)
             return self.parse_orders(filtered_orders, market, since, limit)
         else:
-            return self.parse_orders(response, None, since, limit)
+            return self.parse_orders(data, None, since, limit)
 
     def parse_order(self, order, market=None):
         """解析订单信息"""